Gas-washing system



1, 2, June 1927 F. H. WILLCOX 63 572 GAS WASHING SYSTEM Filed March 9, 1925 a Sheets-Sheet 1 y My, d wwv June 14,1927. 1,632,572

F. H. WILLCOX GAS WASHING SYSTEM Filed March 9, 1925 a Sheets-Sheet 2 I l I I 1,632.,5 2 June 14, 1327. F H. WILL-cox V 7 GAS WASHING SYSTEM Filed March 9, 1923 3 Sheets-Sheet 3 1' o Y N O 1 I r I? urw 35 Figure 4 is a ends? and, 1 of said pipe 2 being said pipev 1. The ip ii has aclosed end,

Patented June 14, 1927.

UNITED s'rm ss PATE OFFICE.

FREDERICK H). wI'L oox, or CHICAGO, rumors, Ass renon To nREYn, smssnn'r &

COMPANY, OF CHICAGO, ILLINOIS, A conronarron on MAINE.

GAswAs'HINe sirs'riiivr.

Application filed March 9, 1923. Serial No. 623,950.

provide a gas washing system which will 7 leave the clean gas at a temperature materially above its dew point.

A further ob'ect is toprovide a gas washing system in which the heat'from the incoming gases is utilized for raisingthe tem perature of the clean gas to a point materially above that at which pecipitation'oc'- curs; A further object is to provide an improved gas washing system which will leave' the gas in proper condition for eflicien'tuse.

Further objects will appear .asthe description proceeds'j v a I lteferring to the dra'wings y Figure 1 is a diagrammatic plan view of one embodiment of. the present invention; .Figure 2 is a diagrammatic. viewin' side elevation; Figure '3 isa diagrammatic; plan view of a slightly modified embodiment of "the pres- .ent invention;

diagrammatic view in side elevation of the structure shown in Fig; uresyg V H Figure 5 is an elevatienal view, partly in section, of a detail; and H p l i I Figure 6 is anilevat'onaliview, partly insectiomof a modifiediform of the present invention. i

Referringfto Figuresl 2,the numeral 1' indicatesa pipe orconductorj which may be connected to the exhaust of a; hot gas emitting mechanism, such, flier instance, as a sintermg machlne, Said p pe "1 throughout a material length thereof is' enclosed within alarger pipe or conductor 2, the sealedv to "as indicated by, the numeral 5; V

The numeral 6 indicates .a gas washer havthe'valve '22.

ing communication with the interior of pipe 1 by means of the connection 7, which connection 7 may be controlled by the valve 8. They numeral 9 indicates a gas drier or moisture eliminator which has communicatifon with the washer 6 through the connecnon 10. Saiddrier or eliminator 9 has com-' munication with the pipe 2'by means'of the connection 11, which connection 11 is controlledby the valve 12. The numeral 13 indicates a second washer, which has com munication withthe interior of the pipe 1 through the connection 14, said connection being controlledby the valve 15. The other sideof the washer 13 is connected through the pipe 16 to'the drier 17, from which communication with the large pipe 2 is had through the connection 18, which connection is controlled by the valve 19. Inasmuch as ithei pipe 1 is adapted to-beconnected to the hot gas emitting mechanism, said pipe 1 'mav be referred to as the hot gas pipe.

lvith reference to the connections between the washers and driers and their respective pipes, it should befnoted that said connections are-not drawnexactly to scale, but on theother hand are slightly modified in order to make a vclearer showing] on the drawing. Inasmuch as'the p pe 2 receives the gases fromthe washers and drlers, sald pipe 2 maybe referred to as the clean gas pipe.

A tion with 'the clean gas pipe 2 through the pipe 21, which pipe 21 is controllable by the point of connection ofp'ipes 20 and 21. The hot gas pipe lmay be provided with the valve 24 at a point near the connection of pipe 20: is provided which has connec' Said pipe 20 may also com municate with the hot gas pipe 1, communi cation between said hot gas pipe 1 and pipe 120jbeing controllable by means of the valve 23 located between said hot gas pipe 1 and pipe 20 with said hot gas pipe 1, but on Referringto the modifications illustrated in. Figures '3 and 4, the hot gas pipe or conductor is shown as being on the outside of: the clean gas pipe or conductor. The pipe 7 25 may be connected to a hot gas emitting the opposite side of said pipe 2Qironi the hot gas emittin;; mechanism.

I ll

26. The pipe 25, through a considerable portion of its length, envelopes the clean gas pipe 27. Said hot gas pipe is closed at its end 28 and the clean gas pipe 27 is closed at its ends 29 and 30.

The numeral 31 indicates a washer, which has communication with the hot gas pipe through the connection 82, which connection 32 may be controlled by the valve 33. The other side of the washer 31 communicates through the pipe 34 with the drier The other side of said drier communicates tnrough the connection 36 with the clean gas pipe 27, said connection 36 being controllable by means of the valve 37.

The numeral 38 indicates a second washer, which has COIHIHUDiCHtiOH with the hot gas pipe 25 through the connection 39, which connection 39 may be controlled by means of the valve 40 The other side of the washer connnunicates through the pipe all with the drier 42, the other side of said drier communicating through the connection 43 with the clean gas pipe 27. Said connection 43 may be controlled by the valve H. The clean gas pipe 27, 'at a point relatively distant from the washers and driers, has communication with the pipe 45, which may conduct clean gas to stoves, boilers, or other gas consuming devices.

(lommunication may be had directly, when desired, from the hot gas pipe 25 to the pipe is through the by-pass 46, said by-pass being controllable by means of the valve 47.

As shown in Figure 3, the by-pass 46 connects with pipe 25 at a point between the valve 26 and the connection with the sintering or other gas emitting mechanism.

The mechanism illustrated in Figure 5 includes the type of washer and drier illustrated in figures l to 4, the reference numerals applied to said mechanism being the same as those applied to Figures 1 and 2.

The inlet connection 7 conducts unwashed gases to the washer 6, washed gases from said washer 6 passing through the connection 10 to the drier 9. The connection 10 carries the washed gases in a downward direction to a level below the outlet 11 of the drier 9. By reason of the fact that the gases must take a tortuous path through the drier 9, a considerable proportion of the moisture entrained in said gases is'removed.

According to the modification illustrated in Figure 6, the gases passing from the washer 6 through the connection 10 are led in proximity to the hot gases passing to the washer 6. According to Figure 6, a material length of the connection 10 is enclosed within the chamber d8, which receives hot unwashed gases from the pipe 49. A pipe 50 connects the chamber 48 with the washer 6, whereby hot gases entering the washer 6 must pass for a considerable distance in proximity to the connection 10. By

reason of this construction the gases passing from washer 6 are raised materially in temperature before entering the drier S).

The above described eml'iodiments of the present invention produce the result that the heat from the incoming gases is com municated to the gases which have been cooled due to their passage through the washer. In the systems disclosed in Fig ures l to l. the hot gases are dammed up at the end of the hot gas pipe, so that said hot gases are directed through the washers and thence through the driers, 'l'rom which the gases in clean condition are dfrected to the clean gas pipe. Inasmuch as the gases in the clean gas pipe are in intimate thermal communication with the hot gases, the temperature of the clean gas is raised to a point materially above the dew point. This gas, with its temperature elevated above that at which it emerges from the drier. is readily combustible, and the n'ccipitation ot the moisture with its accompanying sludge characteristics is prevented. By reason ol the construction illustrated in Figure 6, the clean gas from the washer is given a heat trcatme-nt prior to entrance to the drier.

Though the described embodiments of the present invention represent preferred forms, it is to be understood that many modifications will occur to those skilled in the art. It is intended in this patent to cover all such modifications that fall within the scope of the invention as defined by the appended claims.

What is claimed as new is:

1. Gas washing mechanism comprising a pair of gas conductors, in enveloping relationship with one another, one of said conductors having communication with hot gas emitting mechanism, gas washing means having communication with said oneconductor and having means for delivering clean gas to the other of said conductors, stop means for said one conductor at its end opposite to the point of its communication with said gas emitting mechanism, said gas washing means having communication with said one conductor at a point adjacent to said stop means.

2. Gas washing mechanism comprising a pair of coaxially mounted elongated gas conductors in enveloping relationship with one another, one of said conductors having communieation near one of its ends with hot gas emitting mechanism. gas washing means of elongated shape having its axis parallel with the axes of said conductors. said gas washing means having communication with said one conductor and having means for delivering clean gas to the other of said conductors, stop means for said one conductor at its end opposite to the point of its communication with said gas emitting mechanism. said gas washing means having communication with ill) ' and having means of delivering clean gas to the other of said gas conductors,'said hot gas conductor being in position to envelope said clean gas conductor, stop means for sald hot gas conductor at its end opposite to the point of said gas communication with said gas emitting mechanism, said gas washing means having communication with said hot gas conductor at a point adjacent to said stop means.

4. Gas Washing mechanism comprising an elongated chamber for conducting hot dirty gases, gas washing means adjacent to said hot gas, chamber and having communication therewith, a clean gas conductor leading from said gas washing means to the interior of said hot gas chamber, said clean gas conductor extending throughout substantially the whole length of said hot gas chamber, said hot gas chamber being provided with a wall at the end thereof through which said clean gas conductor extends, and means forming a moisture eliminating chamber with which said clean gas conductor communicates.

5. Gas washing mechanism comprising in combination anelongated member having a partition midway of its length providing two chambers, means for directing hot dirty gases to one of said chambers, a gas washer connected to said one chamber at a point adjacent to said partition, means for leading clean cool gas from said gas washer, said last mentioned means including a conductor mounted interiorly of said one chamber for conducting clean cool gas into thermal communication with the hot dirty gases of said one chamber, said conductor being mounted to extend through said partition to direct clean gas to said other chamber.

I Signed at Chicago, Illinois, this 5th day of March, 1923.

' FREDERICK H. WILLCOX. 7

CERTIFICATE OF CORRECTION.

Patent No. 1,632, 572. Granted June 14, 1927, vto

FREDERICK H. WILLCOX.

It is hereby certified that the assignee in the above numbered patent was erroneously described and specified as "Freya, Brassert 81 Company", whereas said assignee should have been described and specified as Freya Engineering Company, as shown by the records of assignments in this office; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this'12th day of July, A. D. 1927.

M. J. Moore, Seal. Acting Commissioner of Patents: 

